When lysine is too much of a good thing
Lysine hydrochloride is an essential amino acid used in poultry diets to help ensure balanced nutrition and flock performance. But as with anything else, it’s possible for birds to get too much of a good thing, said Jenny Fricke, DVM, a University of Saskatchewan poultry veterinarian.
Fricke learned this firsthand recently after some painstaking detective work. She and some other researchers had been asked to probe why some chickens were grossly underweight. The chickens were 7 days old when they were brought to her and clearly weren’t growing as expected.